[oneplane]

Apple's devices became harder to repair because of Secure Elements, Asymmetric encryption and DFM. Not because of malice as so many people keep thinking. Not releasing parts and schematics is probably something the lawyer department wanted and since there is very little business incentive to do it anyway, they simply don't do it.

[biaachmonkie]

None of the reasons you list require that the RAM and SSD be soldered to the mainboard! They solder them to the mainboard so that you can't buy the low spec'd config from them and then add 3rd party components at reasonable/competitive-market based prices. They force you to pay 2X+ the market rate for for RAM and storage when up-specing a system.

They have the highest margins, by far, in the whole industry, and well they are raking in money so it's working for them, as far as revenue/income is concerned.